MARY-Kate and Ashley Olsen are not as inseparable as they used to be. The twins, who last week gave separate phone interviews to WWD about their new clothing line, Elizabeth and James, are now holding all their in-person meetings separately, too, a source tells Page Six. “All meetings for their clothing line, they will not do together. Something happened between them, and they haven’t worked it out. It’s been going on for a while,” the source said. The Olsens managed to become billionaires when they were in sync.